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100% Pure Vitamin C Powder

Swanson Premium Brand
4.7
(439 ratings)
Vitamin C 1000 mg
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Score95

A 100% pure Vitamin C powder that offers incredible value and total dosing control.

How scoring works
Quantity:1 lb(s)(454 servings)
Goals:
General Health
Immunity
Skin Health
Anti-Inflammatory Support
Vision Support

Score 95

A 100% pure Vitamin C powder that offers incredible value and total dosing control.

How scoring works
$20.79($0.04 per serving)
iHerb
$ 21.29
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Analysis

This is a 1-pound jar of pure ascorbic acid powder, offering 454 servings. It is the most cost-effective way to get high-dose Vitamin C for yourself or your whole family.

Because it's a powder, you can mix it into juices or water to avoid swallowing pills. It is very tart, so it works best when blended into a smoothie or a flavored drink.

Pros

  • Best price per gram of Vitamin C
  • Completely pure with zero fillers
  • Total control over your dose
  • Large jar lasts for many months

Cons

  • Very tart and acidic taste
  • Can be hard on tooth enamel if not rinsed
  • Requires manual measuring

Warnings

  • Rinse your mouth after drinking to protect teeth
  • Do not take on an empty stomach
  • Store in a cool, dry place to prevent clumping

Nutrient quality

88 Highest impact

Highest purity format ensures concentrated Vitamin C delivery without fillers. Unbuffered acid form requires careful usage for individuals with sensitive gastric systems.

Ingredient transparency

100 Highest impact

Labeling is exceptionally simple and clear, identifying the single active ingredient. Dosage and mixing instructions for the powder format are transparent and easy to follow.

Customer satisfaction

92 Highest impact

Strong average rating across several hundred reviews indicates high user approval for purity and results. Feedback highlights the flexibility and efficacy of the concentrated powder format.

Value for money

100 Highest impact

Extremely low cost per serving offers unmatched economic value for high-dose Vitamin C. Pure ingredient format provides the best value by avoiding cost-inflating additions.

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Goals

Impact
Highest effect
A+ Goal FitA Strength of SupportB- CoverageA+ Formula Quality

Pure ascorbic acid powder supports foundational antioxidant defense and daily immune readiness.

A standardized 1000 mg dose may contribute to systemic resilience and foundational connective tissue health.

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Impact
Highest effect
A+ Goal FitA+ Strength of SupportD+ CoverageA+ Formula Quality

Pure L-ascorbic acid powder provides a high-dose foundational nutrient to support antioxidant status and immune cell activity.

A 1,000 mg serving ensures optimal saturation of systemic pathways for daily resilience and host defense.

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Impact
Highest effect
A Goal FitA- Strength of SupportC- CoverageA+ Formula Quality

Pure ascorbic acid powder provides 1,000 mg of Vitamin C to support the biochemical pathway for collagen synthesis.

This high-purity formula offers maximal control over dosing but relies on an unbuffered acid form which may be harsh on the stomach.

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Impact
Highest effect
A- Goal FitA- Strength of SupportC CoverageA+ Formula Quality

Pure L-ascorbic acid powder provides 1,000 mg of powerful antioxidant support to quench oxidative stress and support tissue health. This dosage is well-aligned with clinical standards for promoting systemic health and achieving significant physiological impact.

The powder format offers total dosing flexibility and a completely clean label without fillers or additives. While highly effective, the unbuffered acid form may be less desirable for individuals with sensitive gastric systems.

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Impact
Highest effect
B+ Goal FitA Strength of SupportC- CoverageA+ Formula Quality

Vitamin C powder provides a robust 1000mg dose for Protecting ocular tissues from oxidative damage induced by light exposure. This antioxidant is highly concentrated in the lens and aqueous humor, supporting long-term structural health.

The pure powder format allows for high intake and dosage flexibility for foundational antioxidant support. It serves as a simple, cost-effective intervention for individuals seeking to enhance their ocular antioxidant defense.

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Ingredients

IngredientAmount per serving
Vitamin C (Ascorbic Acid)
1000 mg
Adults 18–50
Report overview
F Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value
This 100% pure ascorbic acid powder provides maximum dosage flexibility and a completely clean label without fillers. It delivers 1,000 mg per serving at an unmatched price point, representing the highest value in the group. While highly effective and pure, the unbuffered acid form may require caution for those with digestive sensitivities.
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